Cooperative Research Units
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Effects of Asian Tapeworm on Fishes of the Yaqui Basin

Duration

September 2002 - September 2009

Narrative

Asian tapeworm Bothriocephalus acheilognathi, a parasite known to be pathogenic to cyprinid fishes, is established in San Bernardino National Wildlife Refuge, southeastern Arizona, USA. The San Bernardino refuge is home to endangered Yaqui chub Gila purpurea, and Yaqui topminnow Poeciliopsis occidentalis sonoreinsis, and our experiment measured the effects of Asian tapeworm on the growth and mortality of these species. Our experiment employed forty 75.8-L aquaria, with 10 different treatments, each having 4 replicates. We stocked fish at 2 single species densities and 1 mixed species density to see if competition has an impact on infection effects. We found a significant difference between growth rates of Yaqui chub that were exposed to Asian tapeworm and those that were not. We did not find a difference between the growth rates of Yaqui topminnow, nor did we find a difference in the mortalities of between exposed and unexposed tanks. The student graduated spring 2007, and this information is currently being compiled for publication.

Research Products and Activities

Peer Reviewed Publications

  • Kline, S. J., and S. A. Bonar. 2009. Captive breeding of Yaqui topminnow and Yaqui chub. North American Journal of Aquaculture.
  • Kline, S. J., T. P. Archdeacon, and S. A. Bonar. 2009. Effects of praziquantel on eggs of the Asian tapeworm Bothriocephalus acheilognathi. North American Journal of Aquaculture.
  • Iles, A., T. P. Archdeacon, and S. A. Bonar. 2012. Novel praziquantel treatment regime for controlling Asian tapeworm infections in pond-reared fishes. North American Journal of Aquaculture 74:113-117.
 

Current Staff

Federal Staff: 2

Masters Students: 9

Phd Students: 1

Post Docs: 1

University Staff: 43

5 Year Summary

Students graduated: 25

Scientific Publications: 57

Presentations: 95

 

Personnel

Funding Agencies

  • Science Support Partnership

Links

Arizona Cooperative Fish and Wildlife Research Unit Cooperators

  1. Arizona Game Fish Department
  2. U.S. Fish and Wildlife Service
  3. U.S. Geological Survey
  4. University of Arizona
  5. Wildlife Management Institute